magnetotransport - ULTIMATE-I

IEEE International Magnetic Conference (INTERMAG 2024), Rio de Janeiro (Brazil), 5th to 10th May 2024

Lara Solís (CNEA); oral presentation: “Thermal spin-current generation in Bi-substituted YIG films with perpendicular magnetic anisotropy”. Collaboration with I. Larmour, INN Constituyentes y Bariloche, UNIZAR, Laboratoire Albert Fert

Joaquin Gajst (CNEA); poster presentation: “Strain-induced oxygen vacancies and ferromagnetic order near the interfaces in CaMnO3 thin films”; collaboration with J. Santiso (ICN2), J.P. Coronel, L. Steren y J. Gajst INN Constituyentes, F. Williams INQUIMAE BsAs

Ángel Alejandro Pérez Martínez (CONICET); poster presentation: “Influence of ferromagnetic coupling in Fe 85 Co 15 /Py bilayers on the ISHE voltage generated by spin pumping” INN Bariloche

Laura Steren (CONICET); poster presentation: “Correlation between strains and oxygen vacancies and magnetotransport properties of CaMnO3 thin films”
Collaboration with J. Santiso (ICN2), J.P. Coronel, L. Steren, A. López Pedroso & J. Gajst INN Constituyentes, F. Williams INQUIMAE BsAs, M. Aguirre, UNIZAR , S. Carreira y J. Briático Lab. Albert Fert

Fernando Fabris, Enio Lima Jr. (CNEA-CONICET), Jorge Martín Núñez (CNEA), Horacio E Troiani, Myriam H Aguirre (UniZar), Víctor Leborán, Francisco Rivadulla, Elin L. Winkler (CNEA-CONICET)

In magnetic tunnel junctions based on iron oxide nanoparticles, the disorder and the oxidation state of the surface spin as well as the nanoparticles functionalization play a crucial role in the magnetotransport properties. We report a systematic study of the effects of vacuum annealing on the structural, magnetic, and transport properties of self-assembled ∼10 nm Fe₃O₄ nanoparticles. This work shows new insights into the influence of the nanoparticle interfacial composition, as well as their spatial arrangement, on the tunnel transport of self-assemblies, and evidence of the importance of optimizing the nanostructure fabrication for increasing the tunneling current without degrading the spin-polarized current.

Nanotechnology, Volume 34, Number 45

DOI: 10.1088/1361-6528/aced0e

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All Open Access, Green Submitted

Tag: magnetotransport

Participation in the IEEE International Magnetic Conference (INTERMAG 2024)

Scientific publication by ULTIMATE-I researchers from CNEA-CONICET Argentina and University of Zaragoza Spain: “Annealing effects on the magnetic and magnetotransport properties of iron oxide nanoparticles self-assemblies”